Incorrect Referencing: In the Commentary entitled “Genomic Analysis of Mental Illness: A Changing Landscape,” published in the June 23/30, 2010, issue of JAMA (2010;303[24]:2523-2524), several references in the text were misnumbered. In the section “The Search for Common Risk Variants,” in the second paragraph, the third sentence should have read “In a meta-analysis, Williams et al7 found overall statistical significance for rs1344706. . . . ” In that same paragraph, the second to last sentence should have cited reference 7 as well: “There is variation in message expression of different alleles of ZNF804A, but expression differences are not associated with rs1344706.7” In the next paragraph, second sentence, reference 9 should not appear. On page 2524, in the first full paragraph, the first sentence should cite references 6, 9, and 10 (instead of 7, 9, and 10): “Similar problems likely account for findings implicating the major histocompatibility (MHC) region with schizophrenia.6,9,10” Finally, in the last paragraph of this section, the first full sentence should cite reference 6 instead of 7: “In the absence of any SNP yielding a convincing replicable association with schizophrenia, . . . genetic liability for schizophrenia and bipolar disorder.6” JAMA regrets these errors. The online versions of this article are corrected.